CA1257004A - Parity integrity check logic - Google Patents

Parity integrity check logic

Info

Publication number
CA1257004A
CA1257004A CA000505952A CA505952A CA1257004A CA 1257004 A CA1257004 A CA 1257004A CA 000505952 A CA000505952 A CA 000505952A CA 505952 A CA505952 A CA 505952A CA 1257004 A CA1257004 A CA 1257004A
Authority
CA
Canada
Prior art keywords
signal
data
parity
error detection
check bit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000505952A
Other languages
English (en)
French (fr)
Inventor
David L. Kirk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell Inc
Original Assignee
Honeywell Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honeywell Inc filed Critical Honeywell Inc
Application granted granted Critical
Publication of CA1257004A publication Critical patent/CA1257004A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
    • G06F11/2215—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test error correction or detection circuits
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Detection And Correction Of Errors (AREA)
  • For Increasing The Reliability Of Semiconductor Memories (AREA)
  • Error Detection And Correction (AREA)
CA000505952A 1985-05-15 1986-04-07 Parity integrity check logic Expired CA1257004A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/734,295 US4670876A (en) 1985-05-15 1985-05-15 Parity integrity check logic
US734,295 1985-05-15

Publications (1)

Publication Number Publication Date
CA1257004A true CA1257004A (en) 1989-07-04

Family

ID=24951089

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000505952A Expired CA1257004A (en) 1985-05-15 1986-04-07 Parity integrity check logic

Country Status (9)

Country Link
US (1) US4670876A (no)
EP (1) EP0201907B1 (no)
JP (1) JPS61265641A (no)
AU (1) AU589616B2 (no)
CA (1) CA1257004A (no)
DE (1) DE3678751D1 (no)
NO (1) NO170113C (no)
SG (1) SG17293G (no)
ZA (1) ZA862885B (no)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179179B (en) * 1985-08-12 1989-10-18 British Gas Corp Improvements in or relating to burner control systems
JPS63102517A (ja) * 1986-10-20 1988-05-07 Nec Corp 機器障害信号伝送方式
GB2200476B (en) * 1987-01-29 1991-02-06 British Gas Plc Monitor system
US4809273A (en) * 1987-01-29 1989-02-28 International Business Machines Corporation Device for verifying operation of a checking code generator
US4817095A (en) * 1987-05-15 1989-03-28 Digital Equipment Corporation Byte write error code method and apparatus
JPH01201736A (ja) * 1988-02-08 1989-08-14 Mitsubishi Electric Corp マイクロコンピュータ
US5107507A (en) * 1988-05-26 1992-04-21 International Business Machines Bidirectional buffer with latch and parity capability
EP0348240B1 (en) * 1988-06-24 1996-05-08 Nec Corporation Microprocessor equipped with parity control unit on same chip
US4962501A (en) * 1988-09-13 1990-10-09 Unisys Corporation Bus data transmission verification system
AU628971B2 (en) * 1989-05-22 1992-09-24 Tandem Computers Incorporated Sequential parity correction
US5195093A (en) * 1991-02-14 1993-03-16 Motorola, Inc. Method and apparatus for ensuring CRC error generation by a data communication station experiencing transmitter exceptions
JP3241110B2 (ja) * 1991-12-26 2001-12-25 株式会社東芝 半導体記憶装置
US5612965A (en) * 1994-04-26 1997-03-18 Unisys Corporation Multiple memory bit/chip failure detection
US5515506A (en) * 1994-08-23 1996-05-07 Hewlett-Packard Company Encoding and decoding of dual-ported RAM parity using one shared parity tree and within one clock cycle
US6393385B1 (en) * 1995-02-07 2002-05-21 Texas Instruments Incorporated Knowledge driven simulation time and data reduction technique
US5701313A (en) * 1995-02-24 1997-12-23 Unisys Corporation Method and apparatus for removing soft errors from a memory
US5666371A (en) * 1995-02-24 1997-09-09 Unisys Corporation Method and apparatus for detecting errors in a system that employs multi-bit wide memory elements
US5511164A (en) * 1995-03-01 1996-04-23 Unisys Corporation Method and apparatus for determining the source and nature of an error within a computer system
US5872910A (en) * 1996-12-27 1999-02-16 Unisys Corporation Parity-error injection system for an instruction processor
US7127646B1 (en) * 2000-06-07 2006-10-24 Lsi Logic Corporation System and method for generating real time errors for device testing
US7447948B2 (en) * 2005-11-21 2008-11-04 Intel Corporation ECC coding for high speed implementation
US8612834B2 (en) * 2011-03-08 2013-12-17 Intel Corporation Apparatus, system, and method for decoding linear block codes in a memory controller
US10522237B2 (en) * 2015-08-07 2019-12-31 Mentor Graphics Corporation Low power VLSI designs using circuit failure in sequential cells as low voltage check for limit of operation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5283046A (en) * 1975-12-30 1977-07-11 Fujitsu Ltd Check system of error detection circuit
JPS5441497A (en) * 1977-09-07 1979-04-02 Hitachi Ltd Piezo-electric porcelain composition
US4223382A (en) * 1978-11-30 1980-09-16 Sperry Corporation Closed loop error correct
US4360917A (en) * 1979-02-07 1982-11-23 The Warner & Swasey Company Parity fault locating means
US4360915A (en) * 1979-02-07 1982-11-23 The Warner & Swasey Company Error detection means
US4327408A (en) * 1979-04-17 1982-04-27 Data General Corporation Controller device with diagnostic capability for use in interfacing a central processing unit with a peripheral storage device
US4295219A (en) * 1980-03-31 1981-10-13 Bell Telephone Laboratories, Incorporated Memory write error detection circuit
US4359771A (en) * 1980-07-25 1982-11-16 Honeywell Information Systems Inc. Method and apparatus for testing and verifying the operation of error control apparatus within a memory
US4531213A (en) * 1982-03-03 1985-07-23 Sperry Corporation Memory through checking system with comparison of data word parity before and after ECC processing
JPS58198935A (ja) * 1982-05-15 1983-11-19 Sony Corp デ−タ伝送方法
US4561095A (en) * 1982-07-19 1985-12-24 Fairchild Camera & Instrument Corporation High-speed error correcting random access memory system

Also Published As

Publication number Publication date
SG17293G (en) 1993-04-16
US4670876A (en) 1987-06-02
EP0201907A2 (en) 1986-11-20
AU589616B2 (en) 1989-10-19
NO170113C (no) 1992-09-09
JPS61265641A (ja) 1986-11-25
DE3678751D1 (de) 1991-05-23
NO861012L (no) 1986-11-17
NO170113B (no) 1992-06-01
ZA862885B (en) 1986-12-30
EP0201907B1 (en) 1991-04-17
EP0201907A3 (en) 1989-04-26
AU5575086A (en) 1986-11-20

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Legal Events

Date Code Title Description
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